Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N5/00—Details of television systems
  • H04N5/76—Television signal recording
  • H04N5/91—Television signal processing therefor
  • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
  • G11B20/10—Digital recording or reproducing
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
  • G11B20/10—Digital recording or reproducing
  • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
  • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
  • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
  • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
  • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
  • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
  • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
  • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
  • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
  • G11B27/327—Table of contents
  • G11B27/329—Table of contents on a disc [VTOC]
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
  • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
  • G11B27/34—Indicating arrangements 
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N5/00—Details of television systems
  • H04N5/76—Television signal recording
  • H04N5/91—Television signal processing therefor
  • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
  • H04N5/9201—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N5/00—Details of television systems
  • H04N5/76—Television signal recording
  • H04N5/91—Television signal processing therefor
  • H04N5/93—Regeneration of the television signal or of selected parts thereof
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B2220/00—Record carriers by type
  • G11B2220/20—Disc-shaped record carriers
  • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
  • G11B2220/213—Read-only discs
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B2220/00—Record carriers by type
  • G11B2220/20—Disc-shaped record carriers
  • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
  • G11B2220/2537—Optical discs
  • G11B2220/2541—Blu-ray discs; Blue laser DVR discs
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N5/00—Details of television systems
  • H04N5/76—Television signal recording
  • H04N5/84—Television signal recording using optical recording
  • H04N5/85—Television signal recording using optical recording on discs or drums

Definitions

• the present invention is an invention belonging to the technical field of random access technology.
• Random access technology is a technology that converts an arbitrary point on the time axis of a digital stream into a recording position on the digital stream and starts reproducing the recording position force. It is an essential technology for playing back digital streams recorded on recording media such as DVDs and DVD-Videos.
• Digital streams are encoded by a variable-length encoding method such as MPEG2-Video or MPEG4-AVC, and the amount of information per frame varies. For this reason, when performing random access, it is necessary to refer to the entry map when performing the above-mentioned conversion.
• the entry map is information that indicates a plurality of entry times on the time axis in association with a plurality of entry positions in the digital stream, and has a time accuracy of one second in the entry map. In this case, random access with a time accuracy of one second can be performed with high efficiency.
• Patent document 1 JP-A-2000-228656
• a slide show refers to an application in which a plurality of still images are played, each still image being reproduced along a predetermined time axis. Since the slide show also has a time axis for playback, by indicating a plurality of entry times on the time axis in association with the entry positions, the stream can be streamed from any point on the time axis.
• the above recording position can be guided, Reproduction from the recording position can be executed.
• High-precision random access is random access in which "one picture" is used as an access unit, such as one picture ahead and ten pictures ahead.
• the entry map of the video stream has a time accuracy of about one second, such as one second interval, and the time interval of one second can include 20 to 30 pictures. Therefore, when trying to realize random access with picture accuracy using the above-mentioned entry map, it is not enough to refer only to the entry map, and it is necessary to analyze the stream.
• stream analysis refers to extracting a picture header from the entry position described in the entry map, reading the picture size from this header, and, based on the size, the next picture.
• the process of specifying the recording position is repeated a number of times to reach the recording position of the desired picture. Since such analysis involves frequent accesses to the stream, it takes a considerable amount of time just to read the picture three or five pages ahead from the entry position. Since it takes a considerable amount of time for random access with picture accuracy, even if you try to add a function that can display the previous or next picture or about 10 pictures to the slide show in response to the user operation, the creator side There is a problem that is expected to be used and that it will not be selfish.
• An object of the present invention is to provide a recording medium capable of realizing random access in a slide show at high speed.
• a recording medium has a video stream and stream management information recorded thereon, the video stream includes a plurality of pieces of picture data, and the stream management information includes an entry.
• the entry map contains the entry addresses of each picture data in the video stream in association with the reproduction time of each picture data, and the entry addresses of all the picture data included in the video stream are included in the entry map. It is characterized by that.
• the entry map for the slide show is a picture-by-picture key in the video stream. Since the stream address is shown in association with the playback time, even if random access with picture precision is requested, such as one picture ahead or three pictures ahead, the picture precision random access is not required without analyzing the video stream. Access can be realized.
• Any time point on the time axis can guide the recording position on the video stream, and random access with 1 picture ahead, 3 pictures ahead, and ⁇ picture accuracy can be realized, so it responds immediately to user operation Then, it is possible to produce an application that can display the previous or next picture, or display several pictures.
• the stream management information further includes a flag, which assures that the entry addresses of all picture data constituting the video stream are included in the entry map.
• the playback device executes the same playback control as the video playback, while indicating that the flag has been described above. Random access with picture accuracy only needs to be executed when there is The playback device can realize random access with picture accuracy while maintaining compatibility with video playback. As a result, it is possible to promote the spread of a playback apparatus having both functions of moving picture playback and slide show playback.
• FIG. 1 is a diagram showing an embodiment of an act of using a recording medium according to the present invention.
• FIG. 2 is a diagram showing an internal configuration of a BD-ROM.
• FIG. 3 is a diagram schematically showing a configuration of a file to which an extension .m2ts is added.
• FIG. 4 is a diagram showing the process by which TS packets constituting an AVClip are written to a BD-ROM.
• FIG. 5 (a) is a diagram showing an internal configuration of a video stream used for a movie.
• (B) is a diagram showing an internal configuration of a video stream used for a slide show.
• FIG. 6 (a) is a diagram showing the internal structure of an IDR picture. (b) Shows the internal structure of the Non-IDR I picture. (c) Dependency on Non-IDR I picture is shown.
• FIG. 7 is a diagram showing a process of converting an IDR picture and a Non-IDR I picture into TS packets.
• FIG. 8 is a diagram showing how an IDR picture in a slide show is recorded on a BD-ROM.
• FIG. 9 is a diagram showing the progress of the slide show playback.
• FIG. 10 is a diagram showing an internal structure of Clip information.
• FIG. 11 (a) Stream_Coding_Info about a video stream is shown.
• FIG. 12 is a diagram showing an internal structure of Clip info in Clip information.
• FIG. 13 is a diagram showing EPjnap settings for a video stream of a movie.
• PTS_EP_start and SPN_EP_start of Entry Point #l to Entry Point # 5 in FIG. 13 are expressed as a set of EP_ow and EP_High.
• FIG. 15 is a diagram showing how random access to the video stream in FIG. 13 is performed.
• FIG. 16 is a diagram showing an internal configuration of EPjnap set for a slide show.
• FIG. 17 is a diagram showing random access to one time point on the time axis in the same notation as FIG.
• FIG. 18 is a diagram showing an internal configuration of a playback device according to the present invention.
• FIG. 19 is a flowchart showing a procedure for converting time information into an I picture address in a video stream used for a movie.
• FIG. 20 is a flowchart showing a procedure for converting time information into an I picture address in a video stream used for a slide show.
• FIG. 21 is a diagram showing the structure of PlayList information.
• FIG. 22 is a diagram showing the relationship between AVClips and PlayList information.
• FIG. 23 is a diagram showing the internal structure of a plurality of pieces of PLMark information of PlayList information according to the second embodiment.
• FIG. 24 is a diagram showing a chapter definition based on PLmark information.
• FIG. 25 is a diagram showing a specific example of a PLMark setting for a video stream used in a slide show.
• FIG. 26 is a flowchart showing a processing procedure of a chapter search.
• FIG. 27 is a flowchart showing the procedure of a chapter skip process.
• FIG. 28 is a diagram showing a configuration of an AVClip according to a third embodiment.
• FIG. 29 (a) is a diagram showing an internal configuration of an IG stream.
• FIG. 30 is a diagram illustrating an example of an ICS that specifies dialog control in a slide show.
• FIGS. 31 (a) to 31 (c) are diagrams showing menus displayed when a video stream reaches a playback time point tx.
• FIG. 32 is a diagram showing a state transition in a menu displayed in the slide show.
• FIG. 33 is a diagram showing branching by a navigation command of a slide show.
• FIG. 1 is a diagram showing a mode of use of a recording medium according to the present invention.
• the recording medium according to the present invention is a BD-ROM 100.
• the BD-ROM 100 is used for supplying a movie work to a home theater system formed by the playback device 200, the remote controller 300, and the television 400.
• FIG. 2 is a diagram showing an internal configuration of the BD-ROM.
• the fourth row of the figure shows the BD-ROM, and the third row shows the tracks on the BD-ROM.
• the track in this figure is drawn by extending a spiral track formed by applying the inner circumferential force of the BD-ROM to the outer circumference as well. This track serves as the lead-in area, volume area, and lead-out area.
• the volume area in this figure has layer models of a physical layer, a file system layer, and an application layer. Expressing the application layer format (application format) of the BD-ROM using the directory structure is as shown in the first row in the figure. At the first level, the BD-ROM has a BDMV directory under the Root directory.
• BDMV directory Under the BDMV directory, there are three subdirectories called a PLAYLIST directory, a CLIPINF directory, and a STREAM directory.
• the STREAM directory is a directory storing a group of files that are the digital stream itself, and includes files (00001.m2ts, 00002.m2ts, 00003.m2ts) with the extension m2ts. [0019]
• the PLAYLIST directory contains files (00001.mpls, 00002.mpls, and 00003mpls) with the extension mpls.
• FIG. 3 is a diagram schematically showing how a file with the extension .m2ts is configured.
• the files with the extension .m2ts (00001.m2ts, 00002.m2ts, 00003.m2ts) store AVClip.
• AVClip (stage 4) converts multiple video frames (pictures pjl, 2, 3) into a powerful video stream and an audio stream consisting of multiple audio frames (stage 1) into a PES packet sequence. (2nd stage), further convert to TS packets (3rd stage), and multiplex these.
• caption-based presentation graphics stream (PG stream) and an interactive-based interactive graphics stream (IG stream) may be multiplexed on the AVClip.
• subtitle data (text subtitle stream) represented by a text code may be recorded as an AV Clip.
• FIG. 4 is a diagram showing the process by which TS packets constituting an AVClip are written to a BD-ROM.
• the first row of the figure shows the TS packets that make up the AVClip.
• TS packets constituting the AVClip are provided with TS_extra_header ("EX" in the figure) as shown in the second row.
• the third and fourth rows show the correspondence between the physical units of the BD-ROM and the TS packets.
• a plurality of sectors are formed on the BD-ROM.
• TS packets with extra.header (hereinafter abbreviated as EX-attached TS packets) are grouped in groups of 32 and written into three sectors.
• the 32 TS packets with EX stored in 3 sectors are called "Aligned Unit" and are written on BD-ROM. In this case, encryption is performed in units of Aligned Unit.
• an error correction code is added to each of the 32 sectors to form an ECC block.
• the playback device accesses the BD-ROM in units of Aligned Unit, it can obtain 32 complete EX-attached TS packets. The above is the process of writing the AVClip to the BD-ROM.
• FIG. 5 is a diagram showing the internal structure of a video stream.
• video streams There are two types of video streams, those used by movies and those used by slide shows.
• the video streams used in these movies and slide shows are all encoded in MPEG4-AVC! In other words, it is assumed that they are common in the encoding method.
• FIG. 5A is a diagram showing an internal configuration of a video stream used for a movie.
• the video stream in FIG. 5A also has a plurality of picture powers arranged in a coding order.
• ⁇ , ⁇ , and ⁇ in the figure mean I picture, ⁇ picture, and ⁇ picture, respectively.
• I pictures There are two types of I pictures: IDR pictures and Non-IDR I pictures.
• Non-IDR I-pictures, P-pictures, and B-pictures are compression-coded based on frame correlation with other pictures.
• a B-picture is a picture composed of Bidirectionally Predictive (B) format slice data
• a P-picture is a picture composed of Predictive (P) format slice data.
• B-pictures include refrenceB pictures and nonrefrenceB pictures.
• FIG. 5 (a) a Non-IDR I picture is described as “I”, and an IDR picture is described as “IDR”.
• IDR an IDR picture
• the same notation is used.
• the above is a video stream used for a movie.
• FIG. 6A shows the internal structure of an IDR picture.
• an IDR picture is composed of a plurality of slice data in the Intra format.
• FIG. 6 (b) shows the internal structure of a Non-IDR I picture.
• IDR picture power In contrast to the Intra-format slice data, the Non-IDR I-picture is composed of Intra-format slice data, P-format slice data, and B ⁇ -type slice data.
• Fig. 6 (c) shows the dependency in the Non-IDR I picture. Show. Since a Non-IDR I picture can be composed of ⁇ , ⁇ slice data, it can have a dependency with other pictures.
• FIG. 7 is a diagram showing a process of converting an IDR picture and a Non-IDR I picture into TS packets.
• the first row in the figure shows an IDR picture and a Non-IDR I picture.
• the second row shows the Access Unit specified in MPEG4-AVC.
• the multiple slice data that make up the IDR picture and Non-IDR I picture are arranged sequentially, and AUD (Access Unit Delimiter), SPS (Sequence Parameter Set), PPS (Picture Parameter Set), SEI (Supplemental Enhanced info) Z ) By being charged, it will be converted to Access Unit.
• AUD Access Unit Delimiter
• SPS Sequence Parameter Set
• PPS Picture Parameter Set
• SEI Supplemental Enhanced info
• Each of the AUD, SPS, PPS, SEI, and Access Unit is information specified in MPEG4-AVC and is described in various documents such as ITU-T Recommendation H.264. See these references. What is important here is that the supply of AUD, SPS, PPS, and SEI to the playback device is an essential condition for random access.
• the third row shows the NAL unit. By adding a header to AUD, SPS, PPS, SEI in the second row, AUD, SPS, PPS, SEI, and slice data are NAL
• NAL unit is a unit specified in the MPEG4-AVC Network Abstraction Layer, and is defined in ITU-T
• a plurality of NAL units obtained by converting one picture are converted into PES packets as shown in the fourth row. Then, it is converted into TS packets and recorded on the BD-ROM.
• the decoder including the Access Unit Delimiter among the IDR picture located at the head of the GOP and the NAL units that make up the Non-IDR I picture is projected to the decoder. I have to enter. That is, the NAL unit including the Access Unit Delimiter is one index for decoding IDR pictures and No n-IDR I pictures. The NAL unit including the Access Unit Delimiter is treated as a point in the present embodiment. Then, when reproducing the video stream, the reproducing device interprets the NAL unit including the Access Unit Delimiter as an entry position for reproducing the Non-IDR I picture and the IDR picture.
• FIG. 5B is a diagram showing an internal configuration of a video stream used for a slide show.
• a video stream used for a slide show is composed of a plurality of still image data. Each of these still image data is an IDR picture.
• each picture is decoded with an IDR picture so that each picture is decoded alone.
• the slide show in the present embodiment is a slide show (Timebased SlideShow) of a type in which a video stream and an audio stream are multiplexed and are played back along with the playback progress of each still image power audio stream in the video stream. is there.
• FIG. 8 is a diagram showing how the IDR picture power in a slide show is recorded on the BD-ROM. Recording on the BD-ROM is the same as in FIG. In other words, the IDR picture that composes the slide show has multiple slice data, so each slice data is Like an R picture, it is converted to a NAL unit and recorded on a BD-ROM.
• the recording shown in this figure differs from that shown in FIG. 7 in that an “End of Stream code” is provided at the end of slice data constituting a picture.
• This End of Stream code is a termination code for instructing the playback device to freeze the decoder operation (Dis play Frozen), and is converted into one NAL unit and recorded on the BD-ROM, like slice data.
• FIG. 9 is a diagram showing the progress of the slide show playback.
• the fourth tier in the figure shows a TS packet sequence
• the third tier shows a PES packet sequence obtained by converting the fourth TS packet.
• the second row shows the time axis of the slide show
• the first row shows the individual IDR pictures that make up the slide show.
• the first-stage IDR picture is displayed at the time indicated by the PTS in the third-stage PES packet. Also, since the third-stage PES packet has the End of Stream code shown in Fig.
• the playback device freezes the decoder operation after displaying the IDR picture at the time indicated in the PTS of the PES packet. (Display Frozen). This frozen state of the decoder operation continues until the next IDR picture is displayed. By repeating the display of the PES packet at the time indicated in the PTS and the freeze of the decoder operation by the End of Stream code, the individual IDR pictures constituting the slide show are reproduced sequentially. The above is the progress of the slide show playback.
• FIG. 10 is a diagram showing the internal structure of Clip information. As shown on the left side of this figure, the Clip information
• the leader line cul in the figure indicates the configuration of the i-th Program Sequence (Program Sequence (O)). Close up. As shown in the callout,
• the Program Info for Sequence (i) is composed of Ns (0 Stream_PID [i] (0), Stream_Coding_Info (i, 0 ) ⁇ Stream_PID [i] (Ns (i) -1), Stream-Coding-Info (i, Ns (i) -l)).
• Stream_PID indicates a packet identifier for each elementary stream forming the AVClip
• Stream_Coding_Info indicates a coding method for each elementary stream forming the AVClip
• FIG. 11 (a) shows Stream_Coding_Info for a video stream
• FIG. 11 (b) shows Stream_CodingJnfo for an audio stream
• the Stream_Coding_Info of the video stream is, as shown in Fig. 11 (a), "Stream_Coding_type", which indicates whether the encoding method of the video stream is MPEG4-AVC or MPEG2-Video, and the display method of the video stream.
• Stream_Coding_type which indicates whether the encoding method of the video stream is MPEG4-AVC or MPEG2-Video, and the display method of the video stream.
• Video_form at '' indicates that the frame rate of the video stream is 23.976Hz, 29.97Hz, or 59.94Hz.
• Includes “aspect_ratio” that indicates whether the aspect ratio of the picture in the stream is 4: 3 or 16: 9.
• FIG. 11 (b) shows Stream_Coding_Info for an audio stream.
• Stream_CodingJnfo hand coding scheme force s LPCM audio stream, indicating which Dolby-AC3, Dts "Stream_Coding_Type", the output format of the audio stream stereo “Audio_Presentation_type” to indicate whether the stream is monaural or multi, “Sam pling—Frenquency” to indicate the sampling frequency of the audio stream, to the audio stream; ⁇ audio—language—code ].
• the lead line cu2 in the figure is a close-up of the CPI configuration.
• the CPI consists of an EP_map.
• EPjnap consists of Ne EP—map—for—one—stream—PID (EP—map—for—one—stream—PID (0) to EP—map—for—one—str eam_PID (Ne-1)).
• EP_map_for_one_stream_PIDs are EP_maps for individual elementary streams belonging to AVClip.
• the EP_map is information indicating the packet number (SPN_EP_start) at the entry position where the Access Unit Delimiter exists on one elementary stream in association with the entry time (PTS_EP_start).
• the leader line cu3 in the figure is a close-up of the internal structure of EP_map_for_one_stream_PID.
• EP_map_for_one_stream_PID is composed of Nc EP_High (EP_High (0) to EP_High (Nc-1)) and Nf EP ⁇ ow (EP ⁇ ow (0) to EP ⁇ ow (Nf-l
• EP-High has a role to represent the upper bits of SPN-EP-start and PTS-EP-start of an Access Unit (Non-IDR I picture, IDR picture).
• ow has a role to indicate lower bits of SPN_EP_start and PTS_EP_start of an Access Unit (Non-IDR I picture, ID R picture).
• EP_High (i) is a reference value for EP ⁇ ow, “ref_to_EP ⁇ ow_id [i]”, and the upper bits of the PTS of the Access Unit (Non-IDR I picture, IDR picture).
• PTS_E_P_High [i] which indicates “”
• SPN_EP_High [i] which indicates the upper bits of the SPN of the Access Unit (Non-IDR I picture, IDR picture).
• i is an identifier for identifying an arbitrary EP_High.
• EP ⁇ ow is “is_angle — change_point (EP ⁇ ow_id)” indicating whether the corresponding Access Unit is an IDR picture and “end_position_offset (” indicating the size of the corresponding Access Unit.
• EP ⁇ ow_id PTS_EP ⁇ ow (EP ⁇ owjd) indicating the lower bits of the PTS of the corresponding Access Unit (Non-IDR I picture, IDR picture), and the corresponding Access Unit (Non-IDR I picture).
• SPN_EPowow (EP ⁇ ow_id)) indicating the lower bit of the SPN of the channel (IDR picture).
• EP owjd is an identifier for identifying an arbitrary EP ow.
• FIG. 12 is a diagram showing the internal structure of Clip info in Clip information.
• the leader lines in the figure close up the configuration of Clip infoO.
• Clip infoO It consists of "clip_stream_type” indicating the type, "application_type” indicating the type of the application that uses this AVClip, "TS_recording_rate” indicating the recording rate of the AVClip, and "number_of_source_packet” indicating the number of TS packets constituting the AVClip. I understand.
• clip_stream_type indicates which of AVClip power Movie Application.TS for Timeoased SlideShow.Tb for MainPath of the Brows a Die SlideShow.TS for SubPath of the Browsable SlideShow corresponding to this Clip information.
• clip_stream_type l, it indicates that the type of AVClip is Movie Application.
• clip_stream_type 4
• clip_stream_type 4
• Arrows ct3 and ct4 in Fig. 12 indicate the secondary semantics provided by this application_type.
• the secondary semantics mean what the data structure of the EP_map looks like when application_type is set to each value.
• EP_map when application_type is 1,4, EP_map means that the interval between two adjacent PTS_EP_start values should be less than 1 second.
• the arrow ct3 in the figure indicates what data structure the EP_map has when the application_type is 2,3. Specifically, when the application_type is 2, 3, it means that the value of PTS_EP_start is set to indicate all the pictures of the AVClip. That is, A Guarantee that all pictures of VClip are indicated by EPjnap!
• a video stream may be configured by using a P picture compressed using correlation with another picture and a B picture compressed using correlation with two or more preceding and succeeding pictures. Therefore, some authors may be able to compose a slide show using P-pictures and B-pictures.
• the playback device refers to the AVClip Clipjnfo to be played back from now on, so that each picture constituting the video stream is an IDR picture and refers to any other picture.
• the playback device can know that no picture is being performed and that any picture is also instructed by the EPjnap force.
• the playback device can decode a desired picture by referring to this application_type when playing back the slide show, without decoding the preceding and following pictures.
• the first row shows a plurality of pictures arranged in display order, and the second row shows the time axis in the picture.
• the fourth row shows the TS packet sequence on the BD-ROM, and the third row shows the setting of the EP_map.
• an Access Unit (Non-IDR I picture, IDR picture) exists at time points tl to t7 on the second time axis. Assuming that the time interval of tl to t3, the time interval of t3 to t5, and the time interval of t5 to t7 are about 1 second, the EP_map in the video stream used for the movie is , Tl to t7, tl, t3, t5 are set as entry times (PTS_EP_start), and are set so as to indicate the recording position (SPN_EP_start) in association therewith.
• PTS_EP_start entry times
• Entry Point #l corresponds to IDR pictures, so is_angle_change_point is set to " ⁇ .
• Other Entries Is_angle_change_point in Point # 2 Entry Point # 4 is set to "0 ,,".
• FIG. 14 illustrates PTS_EP_start and SPN_EP_start of Entry Point #l to Entry Point # 5 in FIG. 13 as a set of EP_ow and EP_High.
• the left side of the figure shows EP_ow, and the right side shows EP_High.
• the PTS_EP ⁇ ow of EP ⁇ ow (i) to (i + l) is tl, t3, t5, Indicates the lower bit of t7.
• SPN_EP_High of EP ⁇ ow (i) to G + l) indicates lower bits of nl, n3, n5, and n7.
• Fig. 14 shows EP_High (0) to (Nc-l) in the EP_map.
• tl, t3, t5, and t7 have common upper bits
• nl, n3, n5, and n7 also have common upper bits
• these common upper bits are described in PTS_EP_High and SPN_EP_High.
• o_EP ⁇ OWjd corresponding to EP_High is set to indicate the first one (EP ow (0) of EP ⁇ ow corresponding to tl, t3, t5, t7, nl, n3, n5, n7).
• the common upper bits of PTS_EP_start and SPN_E P_start are represented by EP_High.
• is_angle_change_point (i) to (i + 3) in EP ⁇ ow (i) to (i + 3), (i) and (i + 2) indicate that the corresponding Access Unit is an IDR picture. Therefore, is_angle_change_point is set to “(. Since (i + l) and (i + 3) are the corresponding Access Unit on-IDR I pictures, is_angle_change_point is set to“ 0 ”. RU
• FIG. 15 is a diagram showing how random access to the video stream of FIG. 13 is performed.
• kel in the fourth row symbolically indicates the route to t5. Strengthen and random This access becomes the overhead of random access because access of the access cannot be directly performed.
• FIG. 16 is a diagram showing the internal structure of the EP_map set for the slide show.
• the EP_map is set so as to indicate all the pictures. Therefore, the individual Entry_Points # 1 to # 7 in the EP_map are set at the playback points tl, t2, t3, t4, t5, and the individual IDR pictures in the slide show. It is clear that t6 and t7 are specified as entry times (PTS_EP_start) and are associated with one entry position (SPN_EP_start).
• the Application_Type in CLIP.INFO is set to 2 or 3 with the EP_map setting as described above, it is possible to identify the existence of an entry on the EP_map for all the pictures that compose the slide show. By referring to the EPjnap entry, the range of the data to be read can be determined, eliminating the need for extra analysis of the previous and next streams.
• FIG. 18 is a diagram showing the internal configuration of the playback device according to the present invention.
• the reproducing apparatus according to the present invention is industrially produced based on the internal configuration shown in the drawing.
• the playback device according to the present invention mainly includes two parts, a system LSI and a drive device, and can be industrially manufactured by mounting these parts on a cabinet and a substrate of the device.
• a system LSI is an integrated circuit in which various processing units that fulfill the functions of a playback device are integrated.
• the playback devices produced in this way are BD drive 1, Arrival
• the internal configuration in this figure is a decoder model based on the MPEG T-STD model, and is a decoder model that includes down conversion.
• the part surrounded by a dashed line indicates a part which is one chip chipped as a system LSI.
• the BD-ROM drive 1 performs loading / ejecting of the BD-ROM, executes access to the BD-ROM, and reads out an Aligned Unit having a capacity of 32 sectors from the BD-ROM.
• Arrival time Clock Counter2 generates Arrival Time Clock based on 27MHz crystal oscillator (27MHz X-tal).
• Arrival Time Clock is a clock signal that defines a time axis serving as a reference of ATS given to TS packets.
• the Source packetizer 3 removes the TP_extra_header from each TS packet constituting the Aligned Unit and replaces only the TS packet with the PID. Output to filter 4.
• the output to the PID filter 4 by the De-Packetizer 3 is made at the timing when the arrival time of the Arrival time Clock Counter 2 becomes the ATS indicated by TP_extra_header.
• the output to the PID filter 4 is performed according to the ATS.Therefore, even if there is a speed difference such as 1 ⁇ speed or 2 ⁇ speed in reading from the BD-ROM, the TS packet output to the PID filter 4 is output by the Arrival Time Clock. Will be made according to the current time that elapses.
• the PID Filter 4 refers to the PID attached to the TS packet to determine whether the TS packet belongs to the video stream, the PG stream, or the IG stream. Output to any of Transport Buffer1, Transport Buffer20 and Transport Bufferd7.
• the Transport Buffer (TB) 5 is a buffer temporarily stored when the TS packet belonging to the video stream is output from the PID filter 4.
• the Multiplexed Buffer (MB) 6 is a buffer for storing PES packets when outputting a video stream from the Transport Buffer 5 to the Elementary Buffer 7.
• the Coded Picture Buffer (CPB) 7 is a buffer in which pictures (Non-IDR I picture, ID R picture, B picture, P picture) in a coding state are stored.
• the video decoder 8 obtains a plurality of frame images by decoding each frame image of the video elementary stream at a predetermined decoding time (DTS), and writes the plurality of frame images to the Decoded Picture Buffer 10O.
• DTS decoding time
• Decoded Picture Buffer 10 is a buffer in which decoded pictures are written.
• the video plane 11 is a plane for storing uncompressed pictures.
• a plane is a memo for storing pixel data for one screen in a playback device. Area.
• the resolution of the video plane 11 is 1920 ⁇ 1080, and the picture data stored in the video plane 11 is composed of pixel data represented by a 16-bit YUV value.
• the Transport Buffer (TB) 12 is a buffer that temporarily accumulates when TS packets belonging to the PG stream are output from the PID filter 4.
• the Coded Data Buffer (CDB) 13 is a buffer in which PES packets making up the PG stream are stored.
• the Stream Graphics Processor (SGP) 14 decodes the PES packet (ODS) that stores the graphics data, and the uncompressed state with the index color power obtained by decoding.
• ODS PES packet
• Object Buffer 15 a graphics object obtained by decoding by the Stream Graphics Processor 14 is placed.
• the Composition Buffer 16 is a memory in which control information (PCS) for rendering graphics data is stored.
• PCS control information
• the Graphics Controller 17 decodes the PCS arranged in the Composition Buffer 16 and performs control based on the decoding result.
• the Presentation Graphics plane 18 is a memory having an area for one screen, and can store uncompressed graphics for one screen.
• the resolution in this plane is 1920 x 1080, and each pixel of uncompressed graphics in the Presentation Graphics plane 18 is represented by an 8-bit index color.
• the uncompressed graphics stored in the Presentation Graphics plane 18 are provided for display by converting the index colors that can be input using CLUT (Color Lookup Table).
• the CLUT unit 19 converts the index colors in the uncompressed graphics stored in the Presentation Graphics plane 18 into Y, Cr, Cb values.
• the Transport Buffer (TB) 20 is a buffer in which TS packets belonging to the IG stream are stored.
• Coded Data Buffer (CDB) 21 is a buffer that stores the PES packets that make up the IG stream. It is a buffet.
• the Stream Graphics Processor (SGP) 22 decodes the PES packet storing the graphics data, and writes an uncompressed bitmap composed of the index colors obtained by the decoding to the ObjectBuffer 23 as a graphics object.
• Object Buffer 23 a graphics object obtained by decoding by the Stream Graphics Processor 22 is arranged.
• the Composition Buffer 24 is a memory in which control information for rendering graphics data is arranged.
• the Graphics Controller 25 decodes the control information arranged in the Composition Buffer 24 and performs control based on the decoding result.
• Interactive (graphics plane) ⁇ 26 In addition, the uncompressed graphics obtained by the encoding by the Stream urapnics Processor (SGP) 22 are written. The resolution in this plane is 1920 X 1080, Each pixel of the uncompressed graphics is represented by an 8-bit index color.
• the uncompressed graphics stored in the Intaractive Graphics plane 26 are converted by converting the index color using a CLUT (Color Lookup Table). Is provided for display.
• the CLUT unit 27 converts the index colors in the uncompressed graphics stored in the Interactive Graphics plane 26 into Y, Cr, Cb values.
• the combining unit 28 combines the uncompressed frame image stored in the video plane 11 and the uncompressed graphics object stored in the Presentation Graphics plane 18. By the composite, it is possible to obtain a composite image in which subtitles are superimposed on a moving image.
• the synthesizing unit 29 includes an uncompressed graphics object stored in the Interactive Graphics plane 26 and a synthesized image (uncompressed picture data and an uncompressed image data of the Presentation Graphics plane 18) output from the synthesizing unit 28. And a graphics object).
• the switch 30 selectively supplies either the TS packet read from the BD-ROM or the TS packet read from the Local Storage 32 to the Transport Buffer 20.
• the Network Device 31 realizes a communication function in the playback device, and establishes a TCP connection, an FTP connection, and the like with a web site corresponding to a URL.
• the Local Storage 32 is a hard disk for storing contents supplied from various recording media and communication media. Contents downloaded from the website through the connection established by the Network Device 31 are also stored in the Local Storage 32.
• the source packetetizer 34 removes the TP_extra_header from the TS packet of the AVClip read from the Local Storage 32, and outputs only the TS packet to the PID filter 35.
• the output from the source de-packetizer 34 to the PID filter 35 is performed at the timing when the Arrival Time Clock Counter 33 becomes the ATS indicated by the time power TP_extra_header over time.
• the PID filter 35 switches the TS packet read from the Local Storage 32 to one of the IG stream decoder side, the audio decoder side, and the text subtitle decoder side.
• the switch 36 requests the audio decoder 39 to permit either the TS packet read from the BD-ROM or the TS packet read from the Local Storage 32.
• Transport Buffer (TB) 37 stores TS packets belonging to the audio stream.
• the Elementary Buffer (EB) 38 is a buffer in which PES packets constituting the audio stream are stored.
• the audio decoder 39 decodes the PES packet output from the Elementary Buffer 38 and outputs uncompressed audio data.
• Transport Buffer (TB) 40 stores TS packets belonging to the text subtitle stream.
• the Elementary Buffer (EB) 41 is a buffer that stores PES packets that constitute the text subtitle stream.
• the text subtitle decoder 42 decodes the PES packet read by the knocker 41 and provides it for display. This decoding is performed by expanding the text string in the text subtitle stream into a bitmap using a font that is read separately from Local Storage32. Done. Text subtitles obtained by decoding are written to the Presentation Graphics plane 18.
• the scenario memory 43 is a memory for storing current Clip information.
• the current Clip information refers to the current Clip information among the multiple Clip information recorded on the BD-ROM.
• the control unit 44 includes an instruction ROM and a CPU, and executes software stored in the instruction ROM to control the entire playback device.
• the content of this control dynamically changes according to a user event generated in response to a user operation and a set value of each PSR in the PSR set 46.
• the PSR set 46 is a non-volatile register built in the playback device, and is composed of 64 Player Status Registers (PSR (l) to (64) and 4096 General Purpose Registers (GPR).
• the 64 Player Status Registers (PSRs) indicate various states in the playback device, such as the current playback point, etc.
• PSR (8) When set to a value from 0 to OxFFFFFF, it indicates the current playback point (current PTM) with a time accuracy of 45 KHz.
• the above is the internal configuration of the playback device.
• the control unit 44 controls the BD drive 1 and the video decoder 8 so as to execute random access when reproducing the video stream of the MPEG4-AVC format.
• the random access includes a time search.
• Time search is a technique for receiving a user's input of time information for "time, minute, and second" to play a video stream from a position corresponding to a designated playback start time.
• the control unit 44 performs a conversion process of converting the time information into an Access Unit address (also referred to as an I-picture address) on the BD-ROM, obtains the Access Unit address, and then obtains the TS after the address.
• the packet is also read from the BD-ROM, and the TS packet is sequentially input to the decoder.
• FIG. 19 is a flowchart showing a procedure for converting time information into an Access Unit address in a video stream used for a movie.
• the run The time information indicating the access destination of the dumb access is written as In_time! /.
• In_time is set to PTS_EP_start.
• step S2 a set of EP_High_id and EP ⁇ owjd closest to PTS_EP_start is obtained.
• EP_High_id is EP_High indicating a point in time before In_time, and is an identifier for specifying the closest EP_High to In_time.
• EP owjd is an EP that indicates a point in time after EP_High [EP_High_id] and before In_time, and is an identifier that identifies the object closest to In_time.
• the control unit 44 adds up the time widths indicated in the PTS_EP_High of the plurality of EP_Highs.
• the time width indicated in PTS_EP_High is a unit of time in which PTS_EP_High is the upper bit. Then, it is determined at which EP_High_id the total power of the time width exceeds the 3 ⁇ 4_time.
• the value obtained by subtracting 1 from this k (k-1) is defined as EP_High_id
• the control unit 44 adds the time width indicated in PTS_EP ⁇ ow of the plurality of EP ⁇ ows to the sum Pup to PTS_EP_High (EP_High_id). Then, it is determined at what number of EP owjd the total power of the time width exceeds ⁇ _time.
• a value obtained by subtracting 1 from h (h-1) is defined as EP ow owjd.
• step S3 When EP ⁇ owjd is obtained in this way, the processing shifts to a loop processing consisting of steps S3 to S5.
• step S4 After substituting EP @ owjd for the variable j (step S3), a loop consisting of steps S4 to S5 is executed.
• This loop processing repeats the decrement of the variable j (step S4) until step S5 is determined to be Yes.
• step S5 determines whether or not the is_angle_change_point (PTS_EP ⁇ ow [j] .is_angle_change_point) force i of the Entry Point specified by the variable j is determined. As long as is_angle_change_point of Point continuously indicates "0", this loop processing is repeatedly executed.
• step S5 If the is_angle_change_point of the Entry Point specified by the variable j becomes "1", this rule The loop processing ends. If step S5 becomes Yes, the variable j is substituted into EP ⁇ owjd (step S6), and EP_High [i] having the closest o_EP ⁇ ow_id [i] to this EP ⁇ owjd is obtained (step S7). ). If EP ⁇ owjd and i are obtained in this way, SPN_EP_Start is obtained from SPN_EP ⁇ ow [EP ⁇ owjd] and SPN_EP_High [i] (step S8), and this SPN_EP_Start is converted to an Access Unit address (step S8). Step S 9).
• the SPN is a serial number of the TS packet
• the TS packet is converted into one Aligned Unit for every 32 packets and recorded in three sectors, so the quotient is obtained by dividing the SPN by 32, and the quotient is obtained. It is interpreted as the number of Aligned Unit where Access Unit exists.
• the sector address of the Aligned Unit closest to the SPN can be obtained. Since the sector address obtained in this way is the relative sector number from the beginning of one AVClip file, the access unit is read out to the video decoder 8 by setting this relative sector number as the file pointer and reading out the AVClip. Can be.
• FIG. 20 is a flowchart showing a procedure for converting time information into an Access Unit address in a video stream used for a slide show.
• In_time can be set to the address of the IDR picture without performing steps S3 to S7 in FIG. Can be converted to Specifically, in S1, In_time is set to PTS_EP_start, and in step S2, a set of EP_High_id, EP ⁇ owjd closest to PTS_EP_start is obtained, and SPN_EP ⁇ ow [EP ⁇ owjd] and SPN_EP_High [EP_High_id] Then, by obtaining SPN_EP_Start from the above (step S8), an Access Unit address may be obtained (step S9). That is, the conversion procedure for obtaining the Access Unit address is greatly simplified.
• step S1 in FIG. 19 the procedure of step S1 in FIG. 19 is executed. That is, in order to obtain the EP_High_id, the control unit 44 adds up the time widths indicated in the PTS_EP_High of the plurality of EP_Highs. Then, in what number of EP_High_id, it is determined whether the sum ⁇ of the time width exceeds In_time.
• the time If the total width ⁇ exceeds In_time the value obtained by subtracting 1 from k (k-1) is used as EP_High_id.
• control unit 44 adds the time width indicated in PTS_EP ow of a plurality of EP ows to the sum up to PTS_EP_High (EP_Highjd). Then, in what number of EP owjd, it is determined whether the sum of the time widths exceeds In_time.
• a value (h-1) obtained by subtracting 1 from h is defined as EP ⁇ owjd.
• each Access Unit (Non-IDR I picture, IDR picture) is specified by Entry_Point in EPjnap, and only the necessary Access Unit data is directly accessed to read the data and send it to the decoder. Since it is possible, the time required for display to improve access efficiency can be shortened.
• the second embodiment is an improvement in setting a chapter on a time axis in a slide show. Related. Hereinafter, information for defining a chapter will be described.
• PlayList information which exists in a file with the extension “mpls”.
• PlayList information will be described.
• PlayList information is information that defines a playback path called PlayList with reference to the AVClip.
• FIG. 21 is a diagram showing the structure of PlayList information. As shown on the left side of the figure, PlayList information also includes a plurality of Playltem information capabilities. Playltem is a playback section defined by specifying In_Time and Out_Time on one or more AVClip time axes. By arranging a plurality of pieces of Playltem information, a PlayList (PL) that also has a plurality of playback sections is defined. The broken line hsl in the figure closes up the internal structure of the Playltem information.
• Playltem information includes ⁇ Clip_information_file_name '' indicating the corresponding Clip information, ⁇ Clip_codecjndentifier '' indicating the encoding method of the corresponding AVClip, and ⁇ In_time '' indicating the time at which playback of the AVClip should start. , “Still_mode” and “Still_time”, which indicate the time at which the playback of the AVClip should end.
• FIG. 22 is a diagram showing a relationship between AV Clip and PlayList information. The first row shows the time axis with AVClip power, and the second row shows the time axis with PlayList power (called PL time axis).
• PlayList information includes three Playltem information, PlayItem # l, # 2, and # 3.Threee playback sections are defined by the In_time and Out_time of these Playltems # 1, # 2, and # 3. become. When these playback sections are arranged, a time axis different from the AVClip time axis is defined. This is the PL time axis shown in the second row. As described above, the definition of the Playltem information enables the definition of a time axis different from that of the AVClip.
• the information elements constituting the PlayList information are characterized by StilLmode and Still-time.
• “Still_mode” indicates whether or not the last picture data is to be statically displayed when playing back pictures from In_time to Out_time. When set to “00”, StilLmode indicates that still display is not to be continued, and when set to "01", StilLmode indicates that still display is to be continued for a finite time. When set to "01”, the time length of the static display is St Set to ilLtime. If set to "02”, StilLmode indicates that the static display will be continued for an infinite period of time. When the still display is continued for an infinite period of time, the display is released by explicit operation from the user.
• Standard_time represents the length of time in seconds when still display is continued when StilLmode is set to 01.
• FIG. 23 is a diagram showing an internal configuration of a plurality of pieces of PLMark information of PlayList information according to the second embodiment.
• the PLmark information (PLmarkO) in FIG. 23 is information for specifying an arbitrary section on the PL time axis as a chapter point. As indicated by the lead line pml in FIG. 23, the PL mark information includes “ref_to_PlayItem_Id” and “mark_time_stamp”.
• FIG. 24 is a diagram showing a chapter definition based on PLmark information. In the figure, the first row shows the AVClip time axis, and the second row shows the PL time axis.
• FIG. 25 is a diagram showing designation of a slide show by PlayList information.
• the second row of the figure shows Playltem information.
• the second level is composed of six Playltem information # 1 to # 6.
• Arrows ytl, 2,3,4,5,6 in the figure symbolically indicate In_time and OuUime specifications in Playltem information, and arrows stl, 2,3,4,5,6 symbolize StilLTime specifications. Is shown.
• the Playltem information is set so as to specify the individual picture data in the video stream so that the arrow force is also exerted.
• StilLTime is set to indicate the interval until the subsequent picture data is displayed. In this way, each piece of picture data constituting a slide show is designated as a reproduction start point and a reproduction end point by six Playltem information.
• the first row of Fig. 25 shows PLMark information.
• PLMark information # 1 to # 6 there are six pieces of PLMark information # 1 to # 6.
• Arrows ktl, 2, 3, 4, 5, and 6 indicate designation by ref_to_PlayItem_Id of PLMark information.
• ref_to_PlayItem_Id of PLMark information is Playltem It is often necessary to specify each piece of information.
• the control unit 44 converts the In_time and Out_time of the Playltem information into the SPN in the AVClip using the EP_map, and specifies the SPN in the AVClip using the EPlmap.
• the existing picture data is input to the decoder. By doing so, the picture data specified by the In_time and Out_time of the Playltem information is displayed. After that, the display is kept still for the period shown in StilLTime.
• the chapter search function describes the Playltem information corresponding to the o_PlayItem_Id described in the PLMark information from a plurality of Playltem information, and the specified Playltem information is defined.
• the random access from the position indicated by the mark_time_stamp described in the PLMark information is performed.At this time, the control unit 44 sets the mark_time_stamp described in the PLMark information among the multiple Entry Points. Most recently, the Entry Point having the PTS_EP_start is specified, and reproduction from the Access Unit address corresponding to the SPN_EP_start of the specified Entry Point is performed.
• the chapter skip specifies PLMark information that specifies a chapter immediately before or immediately after a chapter at the current playback position, and executes a chapter search for the PLMark information.
• Figure 26 is a flowchart showing the chapter search processing procedure. Yat.
• Step S124 a chapter selection in the chapter menu is waited for (Step S124). If the chapter selection is made, the PLMark information corresponding to the selected chapter is set as a current PlayListMark (Step SI25).
• step SI26 the PI described in the o_PlayItem_Id of the current P1 ayListMark is set to Playltemfe, and in step S127, the Clip information specified by the Clip jnformation_file_name of Playltemfe is read.
• step S128 mark_time_stamp of the current PlayListMark is converted to Access Unit address u using the EP_map of the current Clip information.
• step S129 OuUime of Playltemfe is converted to Access Unit address V using the EP_map of the current Clip information.
• step S130 commands the decoder to output from the mark_time_stamp of the current PlayListMark to the OuUime of the Playltemfe.
• step S131 an operation for a SkipNext key and a SkipBack key for the remote controller is awaited. If the operation is performed, step S132 is executed. In step S132, it is determined whether the pressed key is the SkipNext key or the SkipBack key. If the pressed key is the SkipBack key, the direction flag is set to ⁇ 1 in step S133, and if the key is the SkipNext key, the step flag is set. In S134, the direction flag is set to +1.
• Step S135 is a step of specifying the current PLMark by converting the current PI and the current PTM.
• Step S136 is a step of adding the number of the current PLMark and the value of the direction flag to the number of the current PlayListMark. Set as Here, if it is the SkipNext key, the direction flag is set to +1 so that the current PlayListMark is incremented. If the key is a SkipBack key, the direction flag is set to -1, so that the current PlainListMark is decremented. If the PLMark information is set in this way, the TS packet is executed by executing the processing procedure from step S126 to step S130 as in FIG. Read the data.
• the above is the processing procedure of the playback device when performing playback based on PLMark information.
• the chapter search and the chapter skip when performing a chapter search and a chapter skip, it is possible to read out a desired still image without passing through the previous IDR picture. Also, the chapter search and the chapter skip can be executed with high efficiency.
• FIG. 28 is a diagram showing the configuration of an AVClip according to the third embodiment.
• the AVClip is (middle), a video stream composed of a plurality of video frames (pictures pjl, 2, 3), An audio stream that has the power of an audio frame (upper first stage) is converted into a PES packet sequence (upper second stage), and further converted into TS packets (upper third stage), and interactive interactive graphics are also used.
• FIG. 29 is a diagram showing the internal configuration of the IG stream.
• the function segment called PDS (Palette Definition Segment), ODS (Object Definition Segment) ⁇ END (END of Display Set Segment) Become.
• An ODS (Object Definition Segment) is graphics data that defines the graphics of a picture when a button is drawn.
• a PDS (Palette Definition Segment) is a functional segment that defines coloring when rendering graphics data.
• the ICS is a functional segment that specifies interactive control for changing the state of a button according to a user operation.
• FIG. 29 (b) is a diagram showing the internal configuration of the ICS.
• ICS also has multiple button information capabilities.
• the button information corresponds to each button on the dialog control screen. More specifically, if the focus is on the corresponding button and the movement key is pressed, "neighbor_info” indicates which button to move the focus movement to, the normal state of the corresponding button, and the selected button It consists of "statejnfo” indicating which ODS represents each state such as a state, and "navigation command" to be executed by the playback device when the corresponding button is determined.
• FIG. 30 is a diagram illustrating an example of an ICS that defines dialog control in a slide show.
• the statejnfo of Buttonjnfo (O) is defined to draw a triangle with "top” when the button ("top” button) corresponding to Buttonjnfo (O) is in a normal state. Also, if the "top” button has focus (when it is in the selected state), "top” is added. It is defined that the drawn triangular figure is drawn in an emphasized manner. By vigorous convention, the "top” button will be treated as a "top” button, intended to skip to the first still image.
• the statejnfo of Buttonjnfo (l) is defined to draw a triangle with "+ ⁇ ⁇ " when the button ("+ ⁇ button") corresponding to Buttonjnfo (l) is in the normal state. .
• the "+1" button is in the selected state, it is specified that a triangle with "+ ⁇ ” be drawn in an emphasized manner. It will be treated as a "+ ⁇ button", intended to skip to still images.
• the statejnfo of Button_info (2) specifies that if the button corresponding to Button_info (2) is in the normal state ("-1," button), a triangle figure with "-1” is drawn. When the "-1" button is in the selected state, it is specified that the triangle with "-1” be drawn in an emphasized manner. Will be treated as a "-1" button, intended to skip to the previous still image.
• the statejnfo of Button_info (3) is defined to draw a triangle with "+10" when the button ("+10" button) corresponding to Button_info (3) is in the normal state. I have. When the "+10” button is in the selected state, “+10” is drawn in an emphasized manner. By vigorous regulations, the "+10” button is treated as a “+10” button, which is intended to skip to a still image 10 frames later.
• the statejnfo of Button_info (4) is defined to draw a triangle with "-10" when the button ("-10" button) corresponding to Button_info (4) is in the normal state. I have. When the "-10" button is in the selected state, "-10” is drawn in an emphasized manner. By virtue of the powerful rules, the "-10" button is treated as a "-10” button, which is intended to skip to the previous 10-frame still image.
• the neighborjnfo of Buttonjnfo (l) is specified to move the focus to the "top” button with the number "0" when the upper key is pressed, and to the "-1” button with the number “2" when the left key is pressed. It is stipulated that the focus be moved to the "+10" button having the number 3 when the right key is pressed.
• the neighborjnfo of Button_info (3) is defined to move the focus to the "+” button having "1" number when the left key is pressed.
• the neighbor_nfo of Button_info (4) is defined to shift the focus to the "-1" button having the number "2" when the right key is pressed.
• FIG. 32 is a diagram showing a state transition in a menu displayed in a slide show.
• the focus movement can be moved to the “ ⁇ 1” button (hhl).
• the focus can be moved to the "+10” button (hh2), and the focus can be moved to the "+10” button. If the left key is pressed when there is a, the focus movement can be returned to the "+ ⁇ button (hh4). When the up key is pressed in the state where the focus movement exists in the "+ ⁇ ” button, move the focus movement to the "top” button. Power S can be (hh3).
• buttons are the first, next, one before, ten after, ten It is intended to skip forward.
• the focus moves on the buttons as the user presses the up / down / left / right keys, so the "+ ⁇ button ⁇ " -10 " Any of the buttons can be selected by the user.
• the navigation command of Buttonjnfo (O) is specified to execute Jmp PLMark (l) when the confirmation operation is performed on the "top” button.
• the navigation command of Buttonjnfo (l) is defined to execute Jmp PLMark ( X + l) when the "+ ⁇ ⁇ ⁇ " button is confirmed.
• the navigation command of Button_info (2) is specified to execute Jmp PLMark (x-1) when the confirmation operation is performed on the "-1" button.
• the navigation command of Button_info (3) is specified to execute Jmp PLMark ( X + 10) when the confirmation operation is performed on the "+10" button.
• These navigation commands specify a PLMark as a branch destination.
• the value in parentheses for PLMark specifies the picture to branch to. That is, PLMark (l) is a PLMark indicating the first picture, and PLMark (x + l) is a PLMark indicating the x + 1st picture.
• PLMark (x-l) is a PLMark indicating the x-1st picture.
• PLMark (x + 10) is a PLMark indicating the x + 10th picture.
• PLMark (x-10) is a PLMark indicating the x-10th picture.
• the navigation command in each button information specifies these PLMark (l), (x + l), (x-l), (x + 10), (x-10) as branch destinations. Therefore, when each button is confirmed, from the Xth still image, the first still image, ⁇ + 1st still image, x-1st still image, x + 10th still image The still image and the x-10th still image are randomly accessed.
• FIG. 33 is a diagram showing a branch by a navigation command of a slide show.
• the first row of the figure shows a plurality of pictures constituting a slide show and branches to these pictures.
• the second row shows the time axis of the slide show, the third row shows the set entry map for the picture row of the second row, and the fourth row shows TS packets on the BD-ROM. Indicates a column.
• the first arrow in the figure indicates the navigation commands OmpPLMark (l), J mpPLMark (x + l), JmpPLMark (xl), JmpPLMark (x + 10), shown in FIG. Symbolically shows the branch by JmpPLMark (x-10), which is the top still image, the next still image, the previous still image, the 10 still image, and the 10 still image Since these branches are based on the navigation command shown in Fig. 30, these branches allow the user to reproduce an arbitrary still image by his / her own operation.
• the playback time of each of the first still image, the next still image, the previous still image, the tenth still image, and the tenth still image is specified as PTS_EP_start in the EP_map. If so, a random access to a desired access position without performing analysis on the stream can be performed. At the time of interactive reproduction by the navigation command, a desired still image can be read out without passing through a nearby entry position, so that the interactive reproduction can be executed with high efficiency.
• the present invention can be implemented also by the form of the implementation in which (B), (C) and (D) are changed.
• Each invention according to the claims of the present application is described as an expanded description or a generalized description of the above-described plurality of embodiments and their modifications. The degree of extension or generalization is based on the state of the art at the time of filing of the field of the invention.
• the recording medium according to the present invention is implemented as a BD-ROM.
• the recording medium of the present invention is characterized by EPjnap to be recorded. It does not depend on physical properties. Any recording medium that can record EPjnap may be used.
• optical discs such as DVD-ROM, DVD-RAM, DVD-RW, DVD-R, DVD + RW, DVD + R, CD-R, CD-RW, and magneto-optical discs such as PD and MO may be used. ! / ⁇ .
• a semiconductor memory card such as a compact flash (registered trademark) card, a smart media, a memory stick, a multimedia card, and a PCM-CIA card may be used.
• Magnetic recording disks such as a flexible disk, SuperDisk, Zip, Clik! (0, ORB, Jaz, SparQ, SyJet, EZFley, removable hard disk drive (ii) such as a microdrive, etc.) It may be a built-in hard disk.
• the playback device in all the embodiments is configured such that the AVClip recorded on the BD-ROM is decoded and then output to the TV, and the playback device is only a BD-ROM drive. Elements may be provided on the TV. In this case, the playback device and the TV can be incorporated in a home network connected by IEEE1394.
• the playback device in the embodiment may be a playback device integrated with a force display that has been used by being connected to a television.
• the system LSI integrated circuit
• the digital stream in each embodiment may be a DVD-Video standard or a DVD-Video Recording standard VOB (VideoObject) which was an AVClip of the BD-ROM standard.
• VOB is a program stream compliant with ISO / IEC13818-1 standard obtained by multiplexing a video stream and an audio stream.
• the video stream in AVClip may be MPEG4 or WMV.
• the audio stream may be in a Linear-PCM format, a Dolby-AC3 format, an MP3 format, an MPEG-AAC format, or a dts format.
• the slide show in the first embodiment is a TS for Timebased SlideShow.
• the description has been made on the assumption that the AVClip used for TS for MainPath of the Browsable SlideShow or the AVClip used for SubPath of the Browsable SlideShow may be used. That is, EPjnap may be set in the Clip information corresponding to the AVClip used in TS for MainPath of the Browsable SlideShow to indicate the playback time and recording position of each picture.
• the recording medium and the playback device according to the present invention may be used for personal use, such as in a home theater system.
• the recording medium and the reproducing apparatus according to the present invention can be used in the field of industrial product production. Or can be used. From this, the recording medium and the reproducing apparatus according to the present invention have industrial applicability.

Priority Applications (6)

Applications Claiming Priority (2)

Related Child Applications (3)

Publications (1)

Family

ID=35463205

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (5)

Citations (2)

Family Cites Families (31)

• 2005
  • 2005-06-02 KR KR1020077018632A patent/KR100884150B1/ko active IP Right Grant
  • 2005-06-02 EP EP07115750A patent/EP1858014B1/de active Active
  • 2005-06-02 WO PCT/JP2005/010145 patent/WO2005120061A1/ja active Application Filing
  • 2005-06-02 CN CN200710148270A patent/CN100596184C/zh active Active
  • 2005-06-02 DE DE602005017824T patent/DE602005017824D1/de active Active
  • 2005-06-02 KR KR1020077018631A patent/KR100884149B1/ko active IP Right Grant
  • 2005-06-02 EP EP07115752.3A patent/EP1858015B1/de active Active
  • 2005-06-02 US US11/579,223 patent/US8326116B2/en active Active
  • 2005-06-02 CN CN2007101482694A patent/CN101114504B/zh active Active
  • 2005-06-02 JP JP2006519582A patent/JP4027408B2/ja active Active
  • 2005-06-02 CN CN2005800180408A patent/CN1965576B/zh not_active Expired - Fee Related
  • 2005-06-02 EP EP05745975A patent/EP1761055A4/de not_active Withdrawn

Patent Citations (2)

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events